2.-- The economic calendar in the U.S. on Friday includes the Producer Price Index for March at 8:30 a.m. EDT, and the University of Michigan Sentiment Index for April at 9:55 a.m.

3.-- U.S. stocks on Thursday fell sharply as a two-day recovery was stopped short by heavy selling of high-momentum names in the technology and biotech sectors. The losses came even as data showed improvement in labor market conditions.

The Dow Jones Industrial Average closed down 1.62% to 16,170.22 while the S&P 500 ended 2.09% lower at 1,833.08 -- both indices suffered their biggest falls in two months. The Nasdaq was the worst hit, posting its biggest decline since November 2011. The index dropped 3.1% to 4,054.11.

Revenue in the quarter was $22.99 billion, down from $25.12 billion in the year-earlier quarter.

Analysts were looking for earnings of $1.40 a share on revenue of $24.53 billion.

The stock was down 3.6% in premarket trading to $55.32.

6. -- Wells Fargo (WFC) reported earnings of $1.05 a share in the first quarter. Analysts were looking for profit of 97 cents a share.

Revenue was $20.6 billion, in line with forecasts.

Wells Fargo shares fell 0.5% to $47.45.

7. -- Boeing (BA) is moving about 1,000 of its customer support jobs out of Washington and into Southern California.

The company said Thursday that it is centralizing its customer support to its engineering design center in Southern California. It already employs 1,800 people at its Long Beach and Seal Beach sites there.

Boeing said the employees in the Puget Sound region affected by the decision will be given the chance to apply for jobs in California or elsewhere in the company.

Boeing shares fell 0.5% in premarket trading to $123.

8. -- Google (GOOG) plans to sell a limited number of the "Explorer" version of Glass to any U.S. resident who places an online order for the device beginning at 9 a.m. PDT on April 15.

The product will cost $1,500, the same price that Google has charged for Glass since sales of the device began last year.